Grade 3 Science Worksheets

Learning Objectives

• Explain how intended function, load paths, and support locations affect the strength and stability of simple structures.
• Describe how material compatibility and connection quality influence how loads transfer through a structure.
• Use simple evaluation strategies to compare expected forces with material limits and identify common failure modes.

Learning Objectives

• Explain how group living can help animals survive using observable traits and ecological context.
• Describe how organisms in a group may share resources such as food, shelter, or protection.
• Use evidence-based reasoning to support claims about cooperation and competition in nature.+ Show more

Learning Objectives

• Represent local weather observations (temperature, precipitation, and cloud cover) using simple graphs and tables
• Identify daily and seasonal patterns in weather data across weeks and months
• Interpret graphical information to describe changes in weather variability and precipitation trends+ Show more

Learning Objectives

• Explain how an organism’s structures help it survive by linking form to function.
• Use evidence to describe how internal and external structures support life processes.
• Compare structural differences between species and predict how those differences affect survival and reproduction.

Learning Objectives

• Identify how load bearing structures keep their shape when forces push or pull on them.
• Explain how design features like triangles, wider bases, and cross-bracing increase stability.
• Use testing evidence (bending, alignment, and support) to improve a structure design.

Learning Objectives

• Explain how friction is a force that opposes motion between surfaces in contact
• Describe how surface roughness affects how quickly an object slows down
• Predict what happens to distance traveled when friction changes

Learning Objectives

• Explain how the properties of rocks help them be used for hard, durable surfaces and construction.
• Describe how soil properties support plant growth and water absorption.
• Compare how rocks and soil behave and explain why different materials are chosen for different jobs.

Learning Objectives

• Explain how Earth’s rotation creates daily day and night cycles.
• Describe how the amount of daylight changes across the year due to changes in the Sun’s position.
• Connect seasonal changes to observable differences in day length.

Learning Objectives

• Explain how shadows form when objects block some light.
• Describe how opaque, translucent, and transparent materials affect light and visibility.
• Use observations about light to make and support simple science explanations.

Learning Objectives

• Generate multiple simple solution ideas for a science design problem using sketches or models.
• Compare solutions by using measurements and evidence from tests.
• Identify advantages and trade-offs by matching outcomes to given criteria and constraints.+ Show more

Learning Objectives

• Explain how animals form groups (flocks, herds, schools, or colonies) to improve survival.
• Describe how group behavior can reduce individual risk during threats.
• Use evidence from a short passage to identify main ideas about group survival behaviors.

Learning Objectives

• Generate multiple distinct solution options for the same design problem
• Explain how different structures and materials can affect outcomes like stability and impact resistance
• Use criteria (constraints and desired outcomes) to evaluate and improve solution ideas

Learning Objectives

• Explain how animals in groups can find food more successfully than alone
• Describe examples of cooperative foraging using signals or coordinated movement
• Use scientific words such as forage, signal, and coordinated to answer questions+ Show more

Learning Objectives

• Identify observable properties of common materials (color, texture, hardness, and whether they are solid or liquid).
• Explain how a substance’s properties can help distinguish it from other substances.
• Describe how some properties stay the same even when a material changes state.+ Show more

Learning Objectives

• Identify key properties of solids, liquids, and gases (shape, volume, and how they move).
• Use evidence from observations to describe how matter changes behavior in different states.
• Explain how gases spread out, liquids keep volume but change shape, and solids keep both shape and volume.

Learning Objectives

• Explain that combining materials can create a new substance with new properties.
• Identify evidence of new substance formation such as color change, new smell, temperature change, or new behavior.
• Compare initial and final materials to decide whether a chemical change likely occurred.

Learning Objectives

• Identify patterns in an object’s motion over equal time intervals.
• Use a pattern to predict what happens next in an object’s position or distance.
• Explain how repeated measurements support motion predictions.

Learning Objectives

• Explain what makes a science question testable using evidence.
• Identify what observations and measurements can serve as evidence for a question.
• Match a claim to the type of evidence that could support it.

Learning Objectives

• Identify criteria for success and explain how they can be tested using observable results.
• Recognize constraints and describe how they limit materials, time, or cost in a design problem.
• Sort statements into criteria or constraints and use both to evaluate and improve a solution.

Learning Objectives

• Identify observable material properties such as color, texture, size, shape, and response to light or touch.
• Compare two samples by describing similarities and differences in their material properties.
• Use evidence from observations to explain why two materials are alike or different.

Learning Objectives

• Identify common types of simple machines and describe what kind of change they make to force or direction.
• Explain how levers, pulleys, and inclined planes can make work easier.
• Match simple machine vocabulary words with correct definitions.

Learning Objectives

• Identify how weathering, erosion, and deposition change landforms over time.
• Explain how water, wind, and ice can move soil and sediment to create features like valleys, stream channels, deltas, and hills.
• Use maps, photos, and simple models to connect observable landform changes to surface processes.

Learning Objectives

• Explain how seasons affect temperature, precipitation, and storms over the year.
• Describe how seasonal cycles can be similar overall but not identical every year.
• Use evidence from weather patterns to make simple predictions about what a season may bring.

Learning Objectives

• Explain how Earth’s tilt and orbit change the height of the Sun and the length of daylight.
• Describe how changes in sunlight can lead to broad seasonal temperature patterns.
• Differentiate predictable seasonal changes from day-to-day weather variations.

Learning Objectives

• Understand environmental factors affecting material performance in structures.
• Identify causes and consequences of material decay over time.
• Learn about protective treatments and maintenance for durability.+ Show more

Learning Objectives

• Understand how clouds form through condensation and water vapor.
• Identify the relationship between temperature, evaporation, and precipitation.
• Describe different types of precipitation such as rain and snow.+ Show more

Learning Objectives

• Understand the importance of load bearing structures in engineering.
• Identify strong shapes and connections used in structures.
• Describe how structures distribute weight to stay stable.+ Show more

Learning Objectives

• Understand what a habitat is and how it provides shelter for living things.
• Identify different types of habitats and their resources.
• Describe how habitats support the needs of organisms like water, shelter, and food.+ Show more

Learning Objectives

• Understand the basic needs of plants and animals for survival.
• Identify resources plants and animals obtain from their environment.
• Describe how different species meet the same needs using different body structures.+ Show more

Learning Objectives

• Understand how Earth's rotation and tilt affect day length across seasons.
• Identify observable changes in sunlight during different times of the year.
• Connect the position of the Sun in the sky with seasonal daylight patterns.+ Show more

Learning Objectives

• Understand how earth materials like rocks and soil are used for specific purposes.
• Compare the properties of rocks and soil and how they support different needs.
• Explain why different materials are chosen for construction and environmental uses.+ Show more

Learning Objectives

• Understand how Earth's rotation causes day and night.
• Identify the role of the Sun's light in creating daytime and nighttime.
• Explain that Earth's motion, not the Sun's movement, causes the daily cycle.

Learning Objectives

• Understand the importance of safe practices when using tools.
• Identify correct handling and organization of tools to prevent accidents.
• Learn simple guidelines for safe tool operation and workspace management.+ Show more

Learning Objectives

• Understand how objects reflect and absorb light.
• Identify the differences between shiny and dull surfaces.
• Observe how light interactions affect the appearance of objects.+ Show more

Learning Objectives

• Understand that light travels in straight lines.
• Describe how light moves through space and interacts with openings or edges.
• Explain observations related to light paths and regions receiving light.+ Show more

Learning Objectives

• Understand how simple classification rules help organize organisms.
• Identify observable features used in classification.
• Apply classification rules to sort new organisms.+ Show more

Learning Objectives

• Understand what makes a question testable and connected to evidence.
• Identify observations that relate to scientific questions.
• Learn how to select relevant evidence to support a question.+ Show more

Learning Objectives

• Understand how objects block light to form shadows.
• Identify materials as opaque, transparent, or translucent based on light transmission.
• Explain how different materials affect what can be seen through them.+ Show more

Learning Objectives

• Understand the processes of infiltration, percolation, capillary rise, and runoff in soil water movement.
• Identify how soil texture and structure influence water movement and retention.
• Explain how slope affects surface runoff and water distribution in different landscapes.+ Show more

Learning Objectives

• Understand the key considerations in planning and evaluating simple structures.
• Identify common failure modes in structural design.
• Use basic evaluation strategies to compare stresses and material properties.+ Show more

Learning Objectives

• Describe different methods of seed dispersal and their ecological importance.
• Explain how seed morphology and dispersal timing influence plant success.
• Identify how dispersal patterns affect plant populations and habitats.+ Show more

Learning Objectives

• Understand how forces travel through structural systems from points of application to supports.
• Identify how trusses, beams, and columns distribute forces such as axial forces, bending moments, and shear.
• Explain the concept of supports and foundations accepting combined loads.+ Show more

Learning Objectives

• Compare common construction materials and their properties related to strength and stability.
• Identify how environmental factors affect different materials over time.
• Understand trade-offs in choosing materials based on weight, durability, and cost.+ Show more

Learning Objectives

• Understand the different types of forces acting on simple structures.
• Identify load types such as dead loads and live loads.
• Relate forces like tension, compression, bending, and shear to structural elements.+ Show more

Learning Objectives

• Describe the major stages of seed germination, including imbibition, radicle emergence, hypocotyl and epicotyl growth, cotyledon function, and true leaf development.
• Explain the role of seed reserves during early growth.
• Compare germination processes in different plants such as beans, corn, and dandelions.+ Show more

Learning Objectives

• Identify the main parts of a flower and their functions.
• Explain how flowers reproduce and produce seeds.
• Describe different pollination methods and traits that attract pollinators.+ Show more

Learning Objectives

• Understand how soil, light, water, temperature, and nutrients affect plant growth.
• Identify human practices that modify landscape and influence plant development.
• Describe how environmental variables impact germination, growth rates, and survival.+ Show more

Learning Objectives

• Understand different types of connection methods in structures and their effects on stability.
• Identify the materials and fasteners used in various connections.
• Analyze how connection design influences stress distribution and failure mechanisms.+ Show more